Paleoecology of Late Carboniferous encrusting chaetetids in North China.
Paleoecology of Late Carboniferous encrusting chaetetids in North China.
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华北晚石炭世包壳毛壳动物的古生态学.
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Miao Z W
中科院分区：
文献类型：
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作者：
Zhang Y L;Gong E P;Wilson M A;Guan C Q;Chen X H;Huang W T;Wang D;Miao Z W
在辽宁省东部本溪地区上石炭统本溪组灰岩中，发现了一种广泛分布的、保存完好的结壳毛类化石。在研究区域的几个小规模珊瑚礁中，最常见的化石是Chaetetetids和殖民珊瑚。硬底质的常见类型包括原位碳酸盐硬底质、碳酸盐硬底质碎屑、钙质生物碎屑和珊瑚骨骼。在该动物群中观察到了片层、低圆顶（微型）和复盖片层毛纲动物的形态。具有薄的、伸展的鳞片的毛孢子虫是最常见的生长形式。毛孢子虫采用周边、中间和混合生长策略在基质上占据足够的生存空间。他们喜欢透光带内的浅水、温暖和清澈的海洋环境。后来，毛孢子虫通常被沉积物窒息而死。本溪地区的刺毛类化石群落具有较高的物种多样性，不属于石炭纪硬底质海洋群落的典型. which.is在研究区域中，硬基质上竞争结壳之间最常见的空间关系是一个比另一个增长。毛孢子虫是硬基质附着空间的上级竞争者。这一研究为中国石炭纪硬底壳生物的研究提供了新的范例。这项研究可能有助于研究晚石炭世的其他殖民基底。
Well-preserved encrusting chaetetids are widespread and easily observed in limestones of the Benxi Formation (Moscovian, Upper Carboniferous) in the Benxi area, eastern Liaoning Province, North China. Chaetetids and colonial corals were the frameworkbuilding organisms, with chaetetids as the most common fossils in several small-scale reefs of the study area. The common types of hard substrate encrusted by chaetetids include in situ carbonate hardgrounds, carbonate hardground clasts, calcareous bioclasts and coral skeletons. We have observed lamellar, low domical (minidomal) and anastomosing lamellar chaetetid morphologies in this fauna. Chaetetids with thin, spreading lamellae are the most common growth forms. Chaetetids employed peripheral, medial and mixed growth strategies to occupy sufficient living space on the substrates. They favoured a shallow, warm and clear marine environment within the photic zone. Chaetetids were later usually smothered by sediments. The chaetetid fossil communities in the Benxi area have a relatively high species diversity, which.is not typical of hard substrate marine communities in the Carboniferous. The most common spatial relationship between competing encrusters on hard substrates is the growth of one over the other in the study region. Chaetetids were superior competitors for hard substrate attachment space. This palaeoecological study of chaetetids offers a new example for encrusting organisms on hard substrates of the Carboniferous of China. This research may aid in studying other colonised substrates of the Late Carboniferous..